Grain boundary migration in bicrystals of KCl-doped ice
Abstract
Pure and doped ice bicrystals were obtained from ultra pure water and 1.10-6 and 1 10-5 M (0.02 and 0.2 ppm) KCl water solutions . Bicrystals were annealed at --5^oC, -10^oC, -15^oC and --20^oC temperatures for 170 days. The grain boundary migration (GBM) was analyzed using a theory, which considers the interaction between grain boundary and the sample free surface. The GBM rate was determined for the different annealing temperatures and the solute concentrations. The obtained results agree with the effects of impurities observed in many materials and they also showed a possible change of the grain boundary structure.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 2004
- Bibcode:
- 2004APS..MARV21003D